# Exothermic & Endothermic Reactions

> This section is exothermic and endothermic reactions: what Δ H means, how its sign classifies a reaction, and how heat moves between the chemical system and the surroundings. You get an overview of…

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## Full notes

This is a preview of the Exothermic & Endothermic Reactions notes for Grade 11 Physical Sciences. Create a free Hlayiso account to read the full notes, practise every question and track your progress.

## More in Energy and chemical change

- [Activation Energy & Energy Diagrams](https://www.hlayiso.com/grade-11/physical-sciences/notes/energy-and-chemical-change/activation-energy-and-energy-diagrams) — Next section
- [All Energy and chemical change sections](https://www.hlayiso.com/grade-11/physical-sciences/notes/energy-and-chemical-change)

## Frequently asked questions

### What will I learn in "Exothermic & Endothermic Reactions"?

This section covers Exothermic & Endothermic Reactions as part of Energy and chemical change in Grade 11 Physical Sciences. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Exothermic & Endothermic Reactions", are written against the official CAPS curriculum and ATP for Grade 11 Physical Sciences.

### What should I study after "Exothermic & Endothermic Reactions"?

Continue with the next section in Energy and chemical change, or test your understanding with the interactive quiz linked to this section.

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